surface area converter

What is the international acronym for each of these two surface area units?

Prefix or symbol for circle 1-millimeter diam. is: ∅ 1 mm

Prefix or symbol for sphere 1-inch diameter is: ∅ 1 in

Technical units conversion tool for surface area measures. Exchange reading in ∅ 1-millimeter circles unit ∅ 1 mm into ∅ 1-inch spheres unit ∅ 1 in as in an equivalent measurement result (two different units but the same identical physical total value, which is also equal to their proportional parts when divided or multiplied).

How many ∅ 1-inch spheres are contained in one circle 1-millimeter diam.? To link to this surface area - circle 1-millimeter diam. to ∅ 1-inch spheres units converter, only cut and paste the following code into your html.
The link will appear on your page as: on the web units converter from circle 1-millimeter diam. (∅ 1 mm) to ∅ 1-inch spheres (∅ 1 in)